Convert Gigabytes to Megabytes

Converting Gigabytes (GB) to Megabytes (MB) is a common task in digital storage measurements. Digital storage conversions help when comparing file sizes, device capacities, and download speeds — note that these use binary (1024-based) multiples.

To convert, multiply the gigabytes value by 1024. Written as an equation: MB = GB × 1024.

One gigabytes equals approximately 1024 MB. This means you can multiply any GB value by 1024 to get the equivalent in MB.

Worked example: 5 GB = 5120 MB. Enter your own value in the converter above for instant results.

Common mistake: Marketing often uses decimal gigabytes (1 GB = 1,000 MB) while operating systems use binary gibibytes (1 GiB = 1,024 MiB) — check which standard applies.

Bookmark this page for quick GB to MB conversions, or use the swap button to reverse the direction and convert MB back to GB.